AutoCodes – Buick – B2286 Buick

B2286 Buick Code - Left Mirror Position Sensor Circuit

Quick Answer

The Driver Door Module (DDM) and the Passenger Door Module (PDM) receive vertical and horizontal position signals from the mirrors. Common causes include Faulty Left Mirror Position Sensor, Left Mirror Position Sensor harness is open or shorted, Left Mirror Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B2286 Buick indicates Left Mirror Position Sensor Circuit.
Common causes: Common causes include Faulty Left Mirror Position Sensor, Left Mirror Position Sensor harness is open or shorted, Left Mirror Position Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 487

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 31, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2286 Buick Description

The Driver Door Module (DDM) and the Passenger Door Module (PDM) receive vertical and horizontal position signals from the mirrors. These signals are used by the DDM and PDM for memory recall functions to determine the vertical and horizontal positions of the mirrors. The DDM and PDM command the mirror memory settings based on the voltage level they receive back from the position sensors. Each door module provides a 5 volt supply, a signal, and a ground circuit to the sensors. The sensors are variable resistors that the DDM and PDM monitor the voltage level across. When a memory setting is recalled, the DDM and PDM command the mirror motors in the appropriate direction until the position sensors are within the voltage range stored in memory. The DDM and PDM monitor the mirror position sensors 5 volt supply circuits to determine if the voltage level received is out of range. If the DDM or PDM detects a voltage level out of range for greater than 2 seconds, a Diagnostic Trouble Code (DTC) is set.

OBDII Code B2286 Buick - Left Mirror Position Sensor Circuit - AutoCodes.com — B2286 Buick Code - Left Mirror Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B2286 Buick?

Faulty Left Mirror Position Sensor
Left Mirror Position Sensor harness is open or shorted
Left Mirror Position Sensor circuit poor electrical connection
Faulty Driver Door Module (DDM)

How to Fix the DTC B2286 Buick?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2286 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2286 Buick Code

1. What does the OBDII code B2286 mean on a Buick?

B2286 indicates a problem with the left mirror position sensor circuit, which monitors the position of the left side mirror.

2. What are the common symptoms of code B2286 in a Buick?

Symptoms may include the left mirror not adjusting properly, unresponsive mirror controls, or error messages on the dashboard.

3. What causes the B2286 code to appear in a Buick?

Common causes include a faulty mirror position sensor, damaged wiring or connectors, or issues with the mirror control module.

4. Can the B2286 code affect other vehicle systems?

Typically, this code only impacts the functionality of the left mirror and should not affect other systems.

5. How do I diagnose the B2286 code on my Buick?

Start by inspecting the left mirror's wiring and connectors for damage, and use a multimeter to test the mirror position sensor for proper operation.

6. Is it safe to drive my Buick with the B2286 code?

Yes, the vehicle is safe to drive, but you may experience inconvenience with the left mirror's functionality.

7. How do I fix the B2286 code on my Buick?

Repairs may involve replacing the left mirror position sensor, repairing damaged wiring, or updating the mirror control module software.

8. How much does it cost to repair the B2286 code in a Buick?

Costs can vary, but replacing the mirror position sensor might range from $100 to $300, including parts and labor.

9. Can I reset the B2286 code without fixing the issue?

Clearing the code without addressing the root cause may result in the code returning and the mirror issue persisting.

10. What tools are needed to troubleshoot the B2286 code in a Buick?

Tools typically include an OBDII scanner, a multimeter, and basic hand tools for accessing the mirror components.

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